Antonyms for the phrase "boosting morale" include demoralizing, depressing, disheartening, discouraging, and undermining. These words describe actions or events that have the opposite effect of boosting morale, causing low spirits and negative feelings among individuals.
Demoralizing actions can include putting down or criticizing people's efforts, while depressing events include loss, failure, and rejection. Disheartening comments or actions can cause people to lose their motivation, and discouraging individuals can lead to decreased self-confidence.
Undermining activities can include taking actions that counteract or sabotage morale-boosting efforts or creating a negative work environment. It's essential to be mindful of these antonyms and take steps to prevent them from happening to cultivate a positive and productive work culture.